Sri Lanka, Nov. 27 -- A powerful earthquake of 6.6 magnitude struck off the Indonesian island of Sumatra at around 10:26 a.m., the U.S. Geological Survey (USGS) said.

The quake struck at a depth of 16 miles, the USGS said.

Meanwhile, Sri Lankans residing in coastal areas have been urged to be vigilant, the Department of Meteorology has announced

Published by HT Digital Content Services with permission from Ada Derana....